Specifications Case / bezel material: Resin Adjustable Clasp Stainless Steel Band Resin Glass Water Resistant LED backlight 1/10-second stopwatch Measuring capacity: 59'59.9'' Measuring modes: Elapsed time Daily alarm Hourly time signal Auto-calendar (28 days for February) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: ±30 seconds per month Size of case : 38.6 × 36.3 × 9.6mm Total weight : 49g